B43644A5686M007
TDK EPCOS B43644 snap-in capacitor, 68 uF at 450 V, Ø22 x 25 mm, 105 °C with 5000-hour long life for inverters and converters.
The B43644A5686M007 is a TDK EPCOS B43644 series snap-in aluminum electrolytic capacitor rated at 450 V with 68 uF, in a compact case of about 22 mm diameter by 25 mm long. The B43644 series is an ultra-compact, long-life snap-in family rated 105 °C with an endurance of 5000 hours, designed for frequency converters, power supplies and household appliance drives that must run reliably in a warm enclosure. It extends the range to the 450 V class, which suits a rectified high-voltage bus with margin for switching overshoot, and it shares the compact 22 x 25 mm case and the standardized snap-in grid with the 400 V version. A snap-in capacitor mounts directly on the printed circuit board with two or three terminals, so assembly is simple and no clamp is needed, and the terminal can be supplied in short or standard lengths with PVC or PET insulation. Typical uses include the primary bulk capacitance of a switch-mode supply, the bus of a solar inverter and the DC link of an industrial drive. Every capacitor BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you size capacitance and ripple and estimate lifetime from the case temperature.
FAE Professional Review
The B43644A5686M007 is the 450 V companion to the 400 V part, sharing the compact 22 mm can and the 5000-hour life. It suits higher-bus boards that need margin, such as solar inverters and industrial converters. Because the capacitance is modest, a bank of several capacitors is common for the bulk energy.
| Parameter | Value |
|---|---|
| Capacitance | 68 uF |
| Voltage | 450 V |
| Case Size | Ø22 x 25 mm |
| Temperature | -40 °C to +105 °C |
| Endurance | 5000 h at 105 °C |
Application Circuits
Switch-mode power supply bulk
Reference circuits and application schematics for Switch-mode power supply bulk are available from our FAE team.
Solar and storage inverter bus
Reference circuits and application schematics for Solar and storage inverter bus are available from our FAE team.
Industrial converter DC link
Reference circuits and application schematics for Industrial converter DC link are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| B43644A9107M007 | Snap-in Ø22 x 25 mm | 400 V 100 uF version for a lower-voltage bus | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| B43713A6478M000 | Screw terminal Ø90 x 145.5 mm | Screw-terminal capacitor for the main DC link | View |
| B25620B0287K701 | DC-link film capacitor for the bus | View |
Recommended Complementary Products
Frequently Asked Questions
What projects suit the B43644A5686M007?
It suits 450 V class boards that need a 105 °C grade and a long life in a compact case, such as solar inverters, industrial converters and high-voltage supplies. It shares the 22 x 25 mm case and the standardized snap-in grid with the 400 V version.
A bank of several capacitors is common for the bulk energy.
How do I share current across a bank?
Paralleling capacitors shares the ripple current, so the total bank ripple is the sum of the individual ratings. Keep the board trace impedance balanced so the current shares evenly, and verify the ripple on each capacitor under load.
Our FAE team can review the bank layout.
Is the part genuine and documented?
BeiLuo supplies factory-traceable B43644A5686M007 capacitors with an import declaration, certificate of origin and RoHS file on every order. Stock is normally available.
Request a sample to validate the part before production.